Truck for railway-cars.



J. M. HANSEN.

TRUCK FOB RAILWAY ULEB. PLIATIol FILED u1u, 190s.

' Patented Nov. 10, 1.908.

NVENVI'OR.

JOHN M. HANSEN, OF PITTSBURG, ,PENNSYLVANIA Tl El RAILWAY-(ETES.

Spe'cication of Letters Patent.

Patented Nov. 10,V 1908.

-Appiimon inea January 24, 190s. semi No. 412,487.

To all 'whom 'it'may concern.'

Be it known that I, JOHN M. HANSEN, a resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have in vented a new and useful Improvement in I Trucks for Railway-Carsg-and I do hereby declare the following to be a full, clear, and exact description thereof.

This invention relates to dianioiid side.'

frames for railway trucks.

The object of the invention is to provide a .side frame of the character described which is practically self-contained, in which the load is taken directly by the lower arch bar,

Vand which is very strong and rigid.

The invention comprises the construction and Iarrangement of parts hereinurter delbolster guides or columns.

In the accompanying drawing Figure'l is a. plan view of the side frame and part oi the spring plank; Fig. 2 is in part a vertical section and in part an elevation of the same; F ig. 3 is a vertical section on the line 3 3, Fig. 2; and Fig. 4 is 1 similar section on the line 4 4, Fig. 2.

The side frame comprises the upper arch bar 1 which is shown as a section of channel bar )laced with the flanges projecting upwar l the lower arch bar 2 showngas a flat plyate with its ends rigidly secured' to the ends of the upper arch bar, such as by rivets 3, the pedestal tie bar 4, and the The upper -and lower arch bars are separated from each other intermediate their ends as usual, and at their central portions are connected by the bolster guides oi' columns. The latter are of special design, being shown-as formed in a single integral casting of substantial rectangular form in side elevation and coniprising the vertical guide portions or col- 'umns 5, the top connecting member 6, and

the bottom connecting member 7 The top connecting member is strengthened by dependingilangcs 8 and the vertical columns are likewise si rengtlicncd by outwardly projecting [langes i).

The casting' described is connected vto the upper arch bar by means of rivets 10 drien through the arch bur and thel top connecting member (i of the casting, and also through fiariges 1 1 at the upper eudsgf the columns 5. The vertical members or columns 5 :it their lower ends are widened out and cach is pro\'i .icd with au i'lzwning 12,1hrough which ,openings the lowi-i` i rh bar 2 and thc pedestaltie bar 4 extend, said arch bar'and -t'ie bar resting upon the bottom 7 of the casting and being secured thereto by lmeans of rivets 14. The bottom 7 of the casting is formed with a depression 15 to receive the narrow tie bar 4, While the widen` arch bai' 2 rests' upon said tie bar and lateralofset portions 1G of the casting. shape shown in Figs. 3 and 4 so that the The holesl 12 are of the arch bar 2 can be readily inserted and then brought to place bygiving it a part turn. The'bottom 7 of the casting is widened out laterally or sidewse as shown at 17 forining a wide base which is utilized as a spring seat, without the necessity of adding a separate spring seat. The spring plank 18 may be either a channel or two angle bars, being shown as Lhe'latter, and being bolted to the casting through holes in the lateral bottom portions 19 and verticallateral webs 20.

The brake bea-in hangers 21 are 'shown as integral parts of the casting, being forii'ied as arms projecting inwardly from the columns 5. y

The side frame described may be used either with or wit-hout a rigid bolster, but

referably with a swinging bolster having its ends'lying between the columns 5 and resting upon springs which are supported by the spring plank-:ind lower a-i'ch barfY -The spring plank angle bars 18 rest diiectl upon the lower arch bar so thatl the load' is in effect' carried by the central -ortion of the lower arch bar and without p acing any' rivets or bolts at this point under `stress ofany kind, as is the case with ordinary pede's- 4 tal trucks in which the lower arch bar lies below the lower ends of the columns. Such old lconstruction is objectionable, as the' horizontal rivets of the spring plank are ut under shearing stresses, while the vertical.

rivets fasteningthe arch bar to the' columns ness of ordinary diamond t'rame trucks, as," on account of the restricted space `at the lower ends of the columns, the number of rivets which can be employed is limited. By the constructioi'ishown in the drawings this is overcome, as none of the bolts or rivets at the lower ends of the coliiinis are put under any stresses whatever, but the load resting on the spring plank is transmitted directly and by actual coiilact to the lower arch bar` and then transmitted through the lower arch bar to the ends, of the top arch bar and through the vertical are put in tension. This is :L .point of weak-l arch bar. The central portion of the lower arch'bar is practicallyv suspended throu h the columns from the central portion of t e top arch bar. The columns are very securely fastened -to the top arch bar, since there is no restriction as to space or as .to the number oi rivets which can be placed. at this point.

The side frame described forms a Very rigid structure, practically as rigid as a single integral frame of the-same conformation. The number of parts is reduced to a minimum, and the rectangular column casting with top and bottom connectin members forms a brace and prevents vi ration. l. do not, however, limit the invention to the integral casting, as all of the ad\'antage of supporting the load directly on the lower arch bar could be secured if said column casting were made in several pieces instead oi integral, as shown.

That l claim is:

1. A diamondI side frame for trucks comprising upper and lower arch bars rigidly secured together at their ends, and separated at intermediate points, and a'bolster guide member consisting of a single integral casting and comprising two guide columns with top and bottom portions, the top portion being secured to the upper arch bar and the vertical portions or columns being provided at their lower ends with openings through which the lower arch bar extends.

` 2. A diamond side frame for trucks compr-ising upper and lower arch bars rigidly secured together at their ends and separated at their intermediate points, a castlng between thc middle portions of said arch bars and comprising vertical columns and top and bottom connecting members. the top connecting member being secured to the upper arch bar, and the lower arch bar resting 'u pon and being secured to the lower connecting member, and aspring plank resting on said lower arch bar and lower connecting member.

35. A diamond side frame fortrucks com.- prising upper and lower arch bars rigidlv secured together at their ends and separated at intermediate points, and a substantial rectangular castin between said arch bars, said' casting comprising vertical columns prowhich the bottom arch bar and the pedestal tie bar project, a top connecting portion secured to the upper arch bar, and a bottom connecting plate upon which the bottom arch bar and tie bar rest and to which they are secured.

4. A diamond side :trame for truckscomprising upper and lower arch `bars rigidly f vided with openlngs near their ends through f secured together at their ends and separated 4 at intermediatepoints, and abolster guide member comprlsing vertical columns and top and integral bottom connecting members secured, respectively, to the upper and lower arch bars, the bottom connecting member being extended laterally ,to form a spring seat.

5. A column guide member for diamond frame trucks comprising two column guides and top and bottom connecting portions, said -columns at their lower portions being ro- Vided with openings for the lower arch liar.`

6. A. column guidemember for diamond frame trucks comprising vertical columns and top and bottom connecting portions, said columns at their lower ends being provided'with openings for the lower arch bar, and the bottom connecting portion being widened laterally to form a spring seat.

7. A column guide member for diamond frame trucks, comprising two vertical columns and top and bottom connecting members, the vertical columns being provided at their bottoms with openingsfor receiving the lower arch bar and the pedestal. tie bar, and the bottom connecting member being grooved to seat the pedestal tic bar and receive the wider arch bar on top of the same.

In testimony whereof, I the said JOHN M'. HANSEN have hereunto set my hand.

JOHN M.4 HANSEN. 

